5-8

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SEMICONDUCT OR

Handling Precautions for IGBTs

Insulated Gate Bipolar Transistors are susceptible to gate-

insulation damage by the electrostatic discharge of energy

through the devices. When handling these devices, care

should be exercised to assure that the static charge built in

the handler’s body capacitance is not discharged through

the device. With proper handling and application procedures,

however, IGBTs are currently being extensively used in

production

by

numerous

equipment

manufacturers

in

military, industrial and consumer applications, with virtually

no damage problems due to electrostatic discharge. IGBT’s

can be handled safely if the following basic precautions are

taken:

1. Prior to assembly into a circuit, all leads should be kept

shorted together either by the use of metal shorting

springs or by the insertion into conductive material such

as “ECCOSORBD

™ LD26” or equivalent.

2. When devices are removed by hand from their carriers,

the hand being used should be grounded by any suitable

means - for example, with a metallic wristband.

3. Tips of soldering irons should be grounded.

4. Devices should never be inserted into or removed from

circuits with power on.

5. Gate Voltage Rating - Never exceed the gate-voltage

permanent damage to the oxide layer in the gate region.

6. Gate Termination - The gates of these devices are

essentially capacitors. Circuits that leave the gate open-

circuited or floating should be avoided. These conditions

can result in turn-on of the device due to voltage buildup

on the input capacitor due to leakage currents or pickup.

7. Gate Protection - These devices do not have an internal

monolithic zener diode from gate to emitter. If gate

protection is required an external zener is recommended.

ECCOSORBD

Operating Frequency Information

Operating

frequency

information

for

a

typical

device

(Figure 11) is presented as a guide for estimating device

performance

for

a

specific

application.

Other

typical

frequency vs collector current (ICE) plots are possible using

the information shown for a typical unit in Figures 3, 5, 6, 9

and 10. The operating frequency plot (Figure 11) of a typical

point. The information is based on measurements of a

typical device and is bounded by the maximum rated

junction temperature.

time (the denominator) has been arbitrarily held to 10% of

the on- state time for a 50% duty factor. Other definitions are

Device turn-off delay can establish an additional frequency

lightly loaded condition.

HGTP20N60C3R, HGTG20N60C3R, HGT1S20N60C3R, HGT1S20N60C3RS